Cash-Settled Contracts: Mechanics & Examples

What Cash Settlement Actually Means

The word "settlement" in financial markets has a specific technical meaning: it refers to the process by which a trade is finally concluded and all obligations between buyer and seller are discharged. In the equity cash market, settlement means the buyer receives shares and the seller receives money, typically on a T+1 basis in India following SEBI's revised settlement cycle. In derivatives, however, the concept works differently because derivatives are contracts, not ownership instruments.

A derivative contract derives its value from an underlying asset. That underlying might be an equity index like the Nifty 50, a commodity like gold or crude oil, a currency pair like USD/INR, or even an interest rate. The derivative contract itself specifies a notional quantity and a future date on which the contract expires. The key question is: when expiry arrives, what exactly gets exchanged?

In a physically settled contract, the answer is straightforward in theory - the actual underlying asset is delivered. A crude oil futures contract on the New York Mercantile Exchange, for example, traditionally required the seller to deliver 1,000 barrels of West Texas Intermediate crude to a specific pipeline point in Cushing, Oklahoma. The buyer was obligated to take delivery. This is why the infamous negative oil price episode of April 2020 happened - traders with long positions did not want to receive actual barrels and sold contracts at any price, including below zero, to avoid taking delivery.

Cash-settled contracts sidestep this entire logistical complexity. No physical delivery is contemplated. Instead, both parties simply exchange the difference in value. The contract specifies how the "final settlement price" will be calculated, and on expiry day that formula is applied mechanically by the exchange's clearing corporation. The net cash difference flows through the clearing system and appears in trader accounts, typically on the following business day, though margin accounts are adjusted on the expiry day itself.

In the Indian context, the vast majority of index derivatives - Nifty 50, Bank Nifty, Nifty Midcap Select, Sensex, and others - are cash-settled. This is a deliberate design choice. An index is not a single tangible asset; you cannot deliver "the Nifty 50" to someone in a warehouse. The index is a mathematical construct representing the weighted prices of 50 underlying stocks. Cash settlement is not just convenient here - it is logically necessary. Similarly, interest rate futures and currency futures on NSE and BSE are cash-settled because delivering the notional bond or the foreign currency through an equity derivatives infrastructure is impractical.

For single-stock futures and stock options, the regulatory picture in India changed in October 2019. SEBI directed exchanges to move these contracts from cash settlement to physical delivery in a phased manner. Today, if you hold a single-stock futures or options position that expires in-the-money and you have not squared it off before the final settlement, you will be expected to give or receive delivery of the underlying shares. This is a critical distinction that every equity derivatives trader must understand. The rest of this guide focuses primarily on cash-settled instruments - index derivatives and commodity/currency futures - unless otherwise specified.

How the Final Settlement Price Is Determined

The final settlement price is the single most important number in a cash-settled contract. It is the price against which your position is valued at expiry, and it determines whether you profit or lose, and by how much. Understanding how it is calculated is therefore essential.

For index futures and index options on NSE, the final settlement price is generally the official closing value of the underlying index on the expiry date. However, it is not simply the last traded price of the index at 3:30 PM IST. NSE uses a more robust calculation to prevent last-minute price manipulation. The exchange takes the volume-weighted average price (VWAP) of the underlying index - computed from the values of the index observed during the last 30 minutes of trading on the expiry day, i.e., from 3:00 PM to 3:30 PM IST. This averaging process smooths out any spike or dip that a large trader might try to engineer in the closing minutes.

The rationale is sound. If the final settlement price were simply the last print at 3:30 PM, a well-capitalised participant could, in theory, execute large buy or sell orders in the index constituents during the final seconds to push the index in a direction that benefits their derivatives position. The 30-minute VWAP window makes such manipulation prohibitively expensive because the manipulator would need to sustain the price distortion across half an hour of trading across 50 stocks simultaneously.

For weekly options, which expire every Thursday on NSE, the same methodology applies - the settlement price is the 30-minute VWAP of the Nifty 50 (or Bank Nifty, or whichever index) on that Thursday. The clearing corporation, NSE Clearing Limited (formerly known as NSCCL), then disseminates this final settlement price to all brokers and members.

On commodity exchanges, the methodology varies by commodity. For gold futures on MCX, for example, the exchange may use a polling-based mechanism or the London Bullion Market Association (LBMA) afternoon fix converted at the RBI reference rate for USD/INR, depending on the contract specification. For crude oil futures, the settlement price is typically linked to international benchmarks. Traders should always consult the specific contract specification on the exchange's website before trading any commodity contract, because the settlement methodology can differ significantly between commodities and even between different contract expiries for the same commodity.

For currency futures on NSE's currency derivatives segment, the final settlement price is based on the RBI's reference rate for the currency pair on the expiry date. The RBI publishes its reference rates around 12:30 PM IST on business days, and the contract is settled at that rate. This means that by early afternoon on expiry day, the settlement price for USD/INR futures is already fixed, even though trading in those futures may continue until 5:00 PM IST.

Understanding these mechanics matters because it tells you where the risk lies as you approach expiry. If you hold a large index options position going into expiry Thursday, you are exposed to the price action in the index during that specific 30-minute window, not just the direction the market has moved during the day. Experienced traders frequently observe unusual volatility patterns in the underlying index during this settlement window, which they refer to as "expiry day volatility" or sometimes colloquially as "the settlement squeeze."

The Mark-to-Market Process: Daily Cash Settlement in Futures

One aspect of cash settlement that confuses newcomers is that cash settlement in futures is not just a single event that happens at contract expiry. For futures contracts, there is a daily cash settlement process called mark-to-market (MTM) settlement that runs throughout the life of the contract. Understanding this daily MTM is crucial because it is the mechanism by which gains and losses actually flow in and out of your account each evening.

Here is how it works. When you buy or sell a futures contract, the exchange records your entry price. At the end of each trading day, the exchange calculates a "daily settlement price" - typically the weighted average price of the futures contract during the last 30 minutes of trading that day. Your open futures position is then revalued at this daily settlement price.

If the daily settlement price is higher than your previous day's settlement price (or your entry price, on the day you opened the position) and you are long, you have an unrealised profit. The exchange does not leave this profit sitting notionally in your account - it actually credits cash to your account overnight. The next morning, your position is effectively "reset" to the new daily settlement price as your new cost basis. Conversely, if the price moves against you, cash is debited from your account. If your account does not have sufficient funds to cover this debit, your broker will send a margin call.

This daily mark-to-market mechanism is elegant for several reasons. First, it means that gains are realised progressively, not all at once at expiry. A trader who bought Nifty futures at the start of a month and held through a rising market will receive their profits in daily instalments, not wait for expiry. Second, it limits counterparty risk. The exchange's clearing corporation never needs to worry about a position accumulating enormous losses unpaid over weeks - losses are collected daily, and positions are closed if margin is not maintained.

For options buyers, however, daily MTM works differently. An options buyer pays the full premium upfront and does not receive daily cash credits or debits on the option's value change in the same way a futures trader does. The option buyer's maximum loss is capped at the premium paid, and their profit is realised when they either sell the option or at final settlement if the option expires in-the-money. Options sellers (writers), on the other hand, receive the premium upfront and are subject to daily MTM on their margin requirements as the option's value changes.

The daily MTM settlement price is published by NSE Clearing Limited each evening after market close and is available on the exchange's website. Brokers use these prices to update their clients' ledger balances and margin positions overnight. Checking these daily settlement prices is a good habit for anyone holding open futures positions, as it allows you to track exactly how your account balance is being affected each day rather than being surprised by a large movement at expiry.

In the commodity markets, MCX follows a similar daily MTM process for its futures contracts. However, the timing is different because MCX's trading hours extend until 11:30 PM IST for international commodity contracts (such as gold, silver, and crude oil), so the daily settlement process runs later in the evening than it does for equity derivatives.

Cash Settlement vs Physical Delivery: A Critical Distinction for Indian Traders

Before October 2019, virtually all equity derivatives in India - both index-based and stock-based - were cash-settled. This was the standard across the board, and traders grew accustomed to the idea that they could hold a position in single-stock futures or options right up to expiry without worrying about receiving or delivering actual shares. SEBI changed this with a series of circulars that mandated physical delivery for stock derivatives in a phased manner.

The regulatory rationale was clear. SEBI and market observers had noted that the cash-settled nature of stock derivatives was enabling certain kinds of speculative excess and potential market manipulation. Because no delivery of shares was required, large traders could accumulate massive positions in stock futures or options without needing to access the underlying share supply in the cash market at all. The disconnect between the derivatives market and the underlying cash market could at times be stark. By requiring physical delivery, SEBI created a direct link - if you are long a stock futures contract at expiry, you must either square off or be prepared to receive actual shares, which requires sufficient funds in your account. If you are short, you must either square off or deliver actual shares from your demat account.

Today, the practical consequence for retail traders is that positions in stock futures and in-the-money stock options that are not squared off before the final day of the expiry week are subject to physical delivery. Brokers handle the mechanics of this for clients, but it requires the client to have either sufficient cash (to take delivery of shares) or actual shares in their demat account (to give delivery). Many retail brokers have implemented automatic square-off policies - they will close positions in stock derivatives on the last trading day before expiry if the client's account does not meet delivery requirements. Traders should check their broker's specific policy on this.

Index derivatives, however, remain firmly in the cash-settlement camp and are unaffected by the physical delivery mandate. It is simply not possible to deliver the Nifty 50 index in any physical form. When a Nifty 50 futures contract expires, the settlement is always in cash, based on the final settlement price computed from the 30-minute VWAP of the underlying index.

Currency derivatives and interest rate derivatives on NSE and BSE are also cash-settled, as are all index-based commodity contracts. Certain commodity futures (such as gold, silver, copper, crude oil, and agricultural commodities on MCX and NCDEX) retain physical delivery as an option, though in practice the vast majority of retail participants close their positions before expiry to avoid delivery obligations.

The key takeaway for retail investors is to always know, before entering a position, whether the instrument you are trading is cash-settled or physically settled. This information is clearly stated in the contract specification, which every exchange publishes on its website. Ignoring this distinction can lead to unexpected delivery obligations, margin shortfalls, and penalty charges.

Index Options at Expiry: European Style and Final Payoff

Index options in India - such as Nifty 50 options and Bank Nifty options on NSE, or Sensex options on BSE - have a specific characteristic that directly relates to cash settlement: they are European-style options. This means they can only be exercised at expiry, not before. American-style options, by contrast, can be exercised on any day up to and including the expiry date. Most stock options globally are American-style, and in India, stock options are also now physically settled, reinforcing this distinction.

For a holder of a European-style index option, the concept of "exercising" the option is essentially automatic at expiry. You do not need to file any instruction with your broker to exercise the option. The exchange automatically calculates whether each options contract is in-the-money at the final settlement price, and if it is, the intrinsic value is credited to the option holder's account. This is called automatic exercise.

Let us work through the logic. Suppose you hold one lot of a Nifty 50 call option with a strike price of 22,000. The lot size for Nifty 50 futures and options on NSE is currently 25 units (note: lot sizes are periodically revised by SEBI based on the contract value criteria; always verify the current lot size before trading). If the final settlement price on expiry Thursday is 22,350, your call option expires in-the-money by 350 points. The cash settlement payoff per unit is 350 INR, and for the full lot of 25 units, you receive 350 × 25 = 8,750 INR, less whatever premium you paid when you bought the option.

If the final settlement price had been 21,900 instead - below your strike price of 22,000 - your call option expires out-of-the-money and worthless. You receive nothing, and you lose the entire premium you paid. This is the maximum loss for an options buyer: the premium paid upfront.

For options sellers (writers), the situation is the mirror image. If you had sold that 22,000 strike call option, you collected the premium at the outset. If the option expires out-of-the-money (settlement price below 22,000), you keep the entire premium - that is your profit. If the option expires in-the-money (settlement price above 22,000), the cash difference is debited from your account and credited to the option buyer.

The automatic exercise feature of European-style index options on NSE is important because it means you do not need to be actively watching the market on expiry afternoon to "exercise" your profitable options. The system handles it. However, it also means you have no choice - if your option is even slightly in-the-money at the final settlement price, it will be settled, even if you had intended to let it expire. Traders who write options very close to the current index level (near-the-money options) are exposed to significant uncertainty about the final settlement price, which is why the 30-minute VWAP window creates so much anxiety for options sellers on expiry day.

It is also worth noting that even during the trading day before final settlement, any options position can be closed by entering an offsetting trade in the market. Most traders choose to square off positions before expiry rather than wait for automatic settlement, particularly when the option has significant time value remaining or when the trader wishes to lock in a profit without waiting for the settlement price to be fixed.

Margins in Cash-Settled Contracts

Margin requirements are the financial backbone of the derivatives market. They exist to protect the exchange's clearing corporation against the risk that a trader defaults on their obligations. In a cash-settled environment, the concept of margin is particularly important because there is no physical collateral in the form of goods or shares backing the contract - the only protection is the cash or cash-equivalent margin deposited by the trader.

NSE Clearing Limited uses a risk-based margining system called SPAN (Standard Portfolio Analysis of Risk), which was developed by the Chicago Mercantile Exchange and adapted for Indian markets. SPAN looks at a portfolio of positions and estimates the maximum potential one-day loss across a range of market scenarios - different price moves, different volatility shifts. The margin required is set to cover this worst-case scenario loss with a high degree of confidence, typically 99%.

For futures contracts, there are two types of margin. The initial margin (sometimes called SPAN margin) is collected when you first open a position. It represents the estimated maximum single-day loss on the position. The exposure margin (sometimes called extreme loss margin or ELM) is an additional buffer collected over and above the initial margin to cover losses beyond the SPAN estimate in extreme market conditions.

For options buyers, the margin treatment is different. Since the buyer's maximum loss is limited to the premium paid, and the premium is collected upfront, the buyer does not need to post additional margin beyond the premium paid. The options seller, however, faces potentially unlimited losses (in the case of naked call writing) or significant losses (for put writing), so the seller must post the full SPAN plus exposure margin.

As market conditions change - particularly as the price of the underlying index moves and as volatility changes - the SPAN margin requirement can increase or decrease. If the market moves sharply against your position, your margin requirement will increase, and you may receive a margin call from your broker to top up your account. Failure to meet a margin call typically results in your broker compulsorily closing some or all of your positions to bring the margin deficit back to zero.

At expiry for cash-settled contracts, all margins are released once the final settlement is processed. If you were short a Nifty 50 futures contract and it expires, the exchange calculates your final P&L based on the settlement price, credits or debits your account accordingly, and releases the initial and exposure margins. Your account returns to a clean state.

One nuance worth understanding is "calendar spread margin." If you hold a futures position that expires in the current month (near month) and an offsetting position in a future month (middle or far month), the two positions partially offset each other's risk, and the combined margin requirement is lower than the sum of the individual margins. This benefit disappears as the near-month contract approaches its expiry, and the margin requirement for the calendar spread rises sharply in the final few days, which is why rolling a calendar spread early (before the near-month contract enters its "expiry week") is generally considered good practice.

Tax Treatment of Cash-Settled Contracts in India

The tax treatment of income from cash-settled derivatives is a frequently misunderstood area, and getting it wrong can create compliance headaches during income tax filing. The broad framework under Indian income tax law treats profits and losses from futures and options trading as "business income," not as capital gains, because the transactions are treated as speculative or non-speculative business transactions.

Futures and options that are traded on a recognised stock exchange and that are settled in cash or otherwise (i.e., exchange-traded F&O) are classified as non-speculative business transactions under the Income Tax Act. This is a specific carve-out that is beneficial in several ways. Non-speculative business losses can be set off against income from other non-speculative businesses and can be carried forward for up to eight assessment years, unlike speculative losses, which can only be set off against speculative gains.

The income (or loss) from cash-settled derivatives therefore gets added to your other business income and taxed at the applicable income tax slab rate. There is no flat rate or concessional rate for F&O income - it is simply treated as part of your total income for the year. This contrasts with equity shares held for the long term, where long-term capital gains enjoy a concessional tax rate.

The STT (Securities Transaction Tax) on F&O trades is another important consideration. STT is charged at different rates on options premium versus futures turnover. The Finance Act revises these rates periodically; always refer to the latest Finance Act for current STT rates on F&O.

For tax audit purposes, the definition of "turnover" for F&O is not the notional value of contracts traded but the sum of absolute values of all profits and losses on settlement. This is an important distinction - a trader who buys and sells Nifty futures contracts worth crores of rupees in notional terms but nets only small P&L amounts will have a much lower taxable "turnover" figure than a naive calculation of notional contract values would suggest. This turnover figure is relevant for determining whether a tax audit under Section 44AB of the Income Tax Act is mandatory.

GST (Goods and Services Tax) applies to brokerage and other charges paid to your broker for F&O transactions. The brokerage itself is a service and is subject to GST at the applicable rate. This cost, along with STT, exchange transaction charges, SEBI turnover fees, and stamp duty, collectively forms the transaction cost that you incur on every F&O trade and that must be covered by your trading profits before you begin making a net gain.

Because tax laws change with each Budget and are subject to interpretation by the Income Tax Department, it is strongly advisable to consult a qualified chartered accountant (CA) who is familiar with the taxation of derivatives trading. Do not rely solely on general guides, as your personal situation, the quantum of trading, and the interaction with other income sources can all affect your tax position significantly.

Cash Settlement in Commodity and Currency Derivatives

While equity index derivatives often dominate discussions of cash settlement in India, it is equally important to understand how cash settlement works in the commodity and currency derivatives segments, which operate under slightly different regulatory frameworks and have their own settlement conventions.

On MCX (Multi Commodity Exchange), which is regulated by SEBI (commodity exchanges came under SEBI's jurisdiction after the merger with the erstwhile FMC in 2015), most commodity futures contracts were traditionally physically delivered for commodities like gold, silver, copper, zinc, lead, aluminium, and agricultural commodities. However, MCX also lists index futures products such as the iCOMDEX Bullion index futures, which are cash-settled since you cannot deliver a commodity index physically. Certain new-age contracts like natural gas compulsorily delivery contracts are now being structured with delivery at specific hubs, making the delivery versus cash distinction more nuanced.

For international commodity futures on MCX where the settlement price is linked to international benchmarks, the final settlement price calculation involves the international benchmark price (e.g., the COMEX gold settlement or the NYMEX crude oil settlement) converted to Indian rupees at the RBI reference rate for USD/INR published on that date. This foreign exchange conversion introduces an additional layer of risk - even if the commodity price in dollar terms is exactly where you expected, an adverse move in the USD/INR rate can affect your final settlement amount. This is sometimes called the "currency risk" embedded in commodity futures for Indian traders.

On NSE's currency derivatives segment, futures and options on currency pairs such as USD/INR, EUR/INR, GBP/INR, and JPY/INR are cash-settled. The final settlement price for USD/INR futures is the RBI reference rate on the expiry date, which is published around 12:30 PM IST. Currency futures in India expire on the last business day of each month (or as per the specific contract calendar published by the exchange). Options on currency pairs follow a similar settlement methodology.

For interest rate futures on NSE - such as futures on 91-day Treasury Bills or 10-year Government of India bonds - settlement can be cash or physically delivered depending on the specific contract. The 91-day T-bill futures, for example, are cash-settled, while the 10-year bond futures have provision for physical delivery of eligible government securities. Retail participation in interest rate futures remains relatively limited in India compared to equity or currency derivatives, but these instruments are important for institutional participants like banks, insurance companies, and mutual funds who use them to manage interest rate risk.

National Commodity and Derivatives Exchange (NCDEX), which focuses primarily on agricultural commodities, has a mix of physically settled and cash-settled contracts. Agricultural commodity contracts typically specify physical delivery because the underlying produce can actually be delivered to designated warehouses accredited by the exchange. However, index-based products and some contracts based on imported commodities may be cash-settled. Agricultural commodity derivatives have their own unique settlement challenges related to seasonal price variation, quality specifications, and geographical delivery points, which is why this segment requires specialised knowledge before trading.

Regardless of the exchange or commodity, the fundamental principle of cash settlement remains the same: a reference price is established by a transparent and pre-specified formula at contract expiry, and the difference between that price and the trader's entry price is transferred in cash. The integrity of the settlement price determination mechanism is the cornerstone of market trust in cash-settled contracts.

Role of the Clearing Corporation and Settlement Guarantee

One of the most important structural features of cash-settled contracts on Indian exchanges is the role of the clearing corporation and the settlement guarantee it provides. This is a feature that retail traders take for granted but that is actually fundamental to the safety and integrity of the entire derivatives market.

When you buy a Nifty 50 futures contract on NSE, you do not have a direct bilateral contract with the person on the other side of the trade. Instead, the moment the trade is matched on the exchange, the clearing corporation - NSE Clearing Limited (NCL) - steps in as the central counterparty (CCP). NCL becomes the legal buyer to every seller and the legal seller to every buyer. This process is called "novation."

The significance of novation for cash settlement is profound. It means that your settlement will happen regardless of whether the original counterparty on the other side of your trade has the financial resources to pay. NCL guarantees settlement. If a clearing member (broker) defaults, NCL has access to various layers of financial protection - the defaulting member's margins, the clearing member's contribution to the settlement guarantee fund (SGF), other members' SGF contributions, and ultimately NCL's own net worth - to ensure that non-defaulting members and their clients are made whole.

This settlement guarantee is what makes it possible for anonymous trading to occur on a public exchange. You do not need to evaluate the creditworthiness of your counterparty because your counterparty is effectively NCL, which is backed by the regulatory oversight of SEBI and the financial strength of the exchange group.

For retail investors, the practical implication is that on any expiry day, provided you have met your margin requirements and your broker is in good standing, your cash settlement will arrive in your account reliably and on time. The settlement schedule is published in advance - for equity derivatives, final settlement pay-in and pay-out happens on the next business day (T+1) after expiry. The process is automated and highly reliable.

NCL also manages the settlement across all clearing members simultaneously. The net settlement obligations are calculated at the clearing member level, and members either pay in or receive their net settlement amount. This netting process reduces the gross flow of money in the system and makes settlement efficient. From a regulatory standpoint, SEBI requires clearing corporations to maintain certain levels of net worth, to invest their assets conservatively, and to conduct regular stress tests to ensure their ability to handle extreme market scenarios. SEBI's regulations on clearing corporations are detailed and regularly updated to align with international best practices as recommended by IOSCO (International Organisation of Securities Commissions).

Understanding this infrastructure helps traders appreciate why exchange-traded cash-settled derivatives are fundamentally different from, and far safer than, over-the-counter (OTC) derivatives contracts. In OTC markets, such as the interest rate swap market between large banks, there is no central clearing, no central settlement guarantee, and each party is exposed to the other's credit risk. The 2008 global financial crisis demonstrated dramatically what can happen when OTC derivative obligations go unhedged and counterparties default. India's exchange-traded, centrally cleared derivatives market - with its robust cash settlement infrastructure - is designed specifically to avoid these systemic risks.

Practical Strategies Considering Cash Settlement Mechanics

Understanding the mechanics of cash settlement is not merely academic - it has direct, practical implications for how you construct and manage your derivatives trading strategies. Traders who factor in settlement mechanics tend to make more informed decisions than those who treat settlement as an afterthought.

One of the most important practical points is the decision to square off versus hold to expiry. For most options buyers, if the option is deep in-the-money with significant intrinsic value and little time value remaining, holding to expiry and receiving the cash settlement might seem equivalent to selling the option in the market. In practice, there can be a small difference due to bid-ask spreads and the risk of adverse settlement price movement in the last 30 minutes. Deep in-the-money options, however, are often illiquid, making it harder to sell at a fair price. In such cases, letting the option auto-exercise and receive the settlement may actually be the more economical choice.

For options sellers (writers) who are holding positions that are going out-of-the-money as expiry approaches, the decision is often to hold the position until expiry to collect the maximum possible premium decay (theta decay). Near-expiry, out-of-the-money options lose their remaining time value very rapidly, and this accelerated decay benefits the seller. However, this strategy exposes the seller to the settlement price risk in the final 30-minute window. Some experienced options sellers choose to close positions in the hour before market close on expiry day to lock in their gains rather than risk an adverse swing in the settlement window.

Calendar spreads - holding a long position in one expiry month and a short position in another - require careful management around expiry. As the near-month leg expires, the spread position collapses to a single outright position in the far month. The cash settlement of the near-month leg at the final settlement price is automatic, but the trader needs to be aware of the increased margin requirement as the near-month contract enters its final week, and may need to add funds to their account to maintain the position.

For traders using index futures as a hedging instrument - for example, using Nifty 50 futures short positions to hedge a portfolio of large-cap Indian equities - the cash settlement at expiry means the hedge automatically terminates. The hedger needs to decide in advance whether to roll the hedge to the next expiry series (by closing the expiring short futures and opening a new short in the next series) or to lift the hedge entirely. The cost of rolling includes the difference in price between the expiring contract and the next month's contract, which reflects the cost of carry.

Finally, understanding that weekly options settle every Thursday means that the pace of time decay (theta) is dramatically faster for weekly options than for monthly options. A weekly option that is out-of-the-money on Monday can lose most of its remaining time value by Wednesday, providing rapid premium collection opportunities for sellers but also creating significant risk of large percentage losses for buyers if the market does not move in the anticipated direction quickly. The weekly settlement cycle also means that traders who are not paying close attention can find that their options have settled worthless while they were away from their screens - a sharp reminder of the importance of active position monitoring in options trading.

Example

Key benefits

How it works

1. 1
   Contract Entry and Margin Posting

   When you buy or sell a cash-settled futures or options contract on an exchange like NSE or MCX, you post an initial margin with your broker. This margin is held by the clearing corporation as collateral against potential losses on your position.

2. 2
   Daily Mark-to-Market Settlement (Futures)

   Each evening, the exchange calculates a daily settlement price for open futures positions. Gains are credited to your account and losses are debited. This ensures losses are collected incrementally rather than accumulating to expiry.

3. 3
   Position Monitoring and Margin Maintenance

   Throughout the contract's life, if your margin balance falls below the maintenance margin level due to adverse price moves, your broker issues a margin call and you must deposit additional funds or face compulsory position closure.

4. 4
   Approaching Expiry

   You can close your position at any time before expiry by entering an offsetting trade in the market. If you do not close the position, it will proceed to final settlement on the expiry date.

5. 5
   Final Settlement Price Calculation

   On expiry day, the exchange calculates the final settlement price using the pre-specified formula - for Nifty 50 derivatives, this is the 30-minute VWAP of the index from 3:00 PM to 3:30 PM IST on the expiry day.

6. 6
   Cash Difference Computed and Transferred

   The clearing corporation computes the difference between your position's last settlement price (or strike price, for options) and the final settlement price. This difference, multiplied by the lot size, is credited or debited to your account.

7. 7
   Margin Release and Account Reconciliation

   Once final settlement is processed on the business day following expiry (T+1), all margins held against the expired contract are released back to your trading account, and the contract is considered fully extinguished.

Formula

Cash Settlement P&L (Futures) = (Final Settlement Price - Entry Price) × Lot Size × Number of Lots
Cash Settlement P&L (Long Call Option) = MAX(Final Settlement Price - Strike Price, 0) × Lot Size - Premium Paid

Key takeaways

Frequently asked questions

Related terms